| Department | Name | Phone | Campus | |
|---|---|---|---|---|
| RADIATION SAFETY COMMITTEE | BRANDI SIMMONS | 405-744-7890 | radsafe@okstate.edu | OSU Stillwater |
| Radiology | OSU Center for Health Sciences | |||
| READING & MATHEMATIC CENTER | Jenn Sanders | 405-744-7119 | OSU Stillwater | |
| REBOOT CENTER | 405-744-6434 | OSU Stillwater | ||
| RECORDS & REGISTRAR SERVICES | Hank Lankford | 405-945-3252 | OSU Oklahoma City | |
| Recruitment | Alyson Smotherman | 405-945-3279 | OSU Oklahoma City | |
| RED EARTH KITCHEN | 405-744-6116 | dining@okstate.edu | OSU Stillwater | |
| REDISTRIBUTIONS | 405-744-7294 | payroll.services@okstate.edu | OSU Stillwater | |
| REGISTRAR | RITA PEASTER | 405-744-6876 | registrar@okstate.edu | OSU Stillwater |